Section C
Passage One
开头英语为：Losing your ability
46. A) Not all of them are symptoms of dementia.
答案出处: There are pretty clear differences between signs of dementia and age-related memory loss.
47. C) Communication within our brain weakens.
答案出处: Changes in brain cells can affect communication between different regions of the brain.
48. A) Totally forgetting how to do one's daily routines.
答案出处: Forgetting how to operate a familiar object like a microwave oven, or forgetting how to drive to the house of a friend you’ve visited many times before can also be signs of something going wrong.
49. C) Turn to a professional for assistance.
答案出处: Daffner suggests going to your doctor to check on medications, health problems and other issues that could be affecting memory.
50. D) Staying active both physically and mentally.
答案出处: And the best defense against memory loss is to try to prevent by building up your brain's cognitive reserve.
In other words, keep your brain busy and working. And also get physically active, because exercise is a known brain booster.
Passage Two
文章开头是A letter
51. What happened to Darwin's letter in the 1970s?
B) It was stolen more than once.
答案出处：“We realized in the mid-1970s that it was missing,”…. likely taken by an intern (实习生)”… “The intern likely took the letter again once nobody was watching it.”
52. What did the FBI do after the recovery of the letter?
A) They proved its authenticity.
答案出处：Their art crime team recovered the letter but were unable to press charges because the time of limitations had ended. The FBI worked closely with the Archives to determine that the letter was both authentic and definitely Smithsonian’s property.
53. What is Darwin's letter about?
D) His acknowledgement for help from a professional.
答案出处：The letter was written by Darwin to thank an American geologist, Dr. Ferdinand Vandeveer Hayden, for sending him copies of his research into the geology of the region that would become Yellowstone National Park.
54. What will the Smithsonian Institution Archives do with the letter according to Kapsalis?
D) Make it available online.
答案出处：
After it is repaired, we will take digital photos of it and that will be available online.
55. What has the past half century witnessed according to Kapsalis?
B) Radical changes in archiving practices.
答案出处：
…“Archiving practices have changed greatly since the 1970s,”says Kapsalis, “and we keep our high value documents in a safe…”
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